The ASME B31.3 Code specifies the minimum criteria for process pipe design, materials, fabrication, inspection, testing, and commissioning.
Your inspection and test plan (ITP) for process piping must meet the ASME B31.3 Code requirements, as explained above.
ASME B31.3 refers to other ASME code sections for certain operations. For example, refer to ASME Code Section IX for welding, ASME B16.5 for pipe fitting design and selection, and ASME Code Section V for nondestructive testing.
The process piping design and construction do not adhere to the ASME Code scheme for stamped products.
It means that ASME does not certify construction contractors, and it is up to the owner to choose a qualified and experienced contractor for their process piping construction project.
This is why under the ASME B31.3 code, you cannot find the wording “Authorized Inspector,” but instead the words
